Container cap



Dec. 11 1923.

M. FELDSTEIN CONTAINER CAP Filed Jan. 5. 1922 Max 2;

I 1,476,700 OFFICE. 5'

MAX FELDSTEIN, OF CHICAGO, ILLINOIS.

Patented Dec. 11, 1923.

cou'mmnn CAP.

Application filed January 3, 1922. Serial No. 526,671. g i

and has to do more particularly with a selfcontained cap having asecured movable cap member adapted to open and close the cap outlet by aslight manipulation of the cap member without a removal thereof. Mimproved cap is particularly useful on co lapsible containers of thesmall tubular type and is especially adapted for use with pastes andcreams although, of course, not limited thereto.

In the collapsible tubes now on the market containing Vaseline, toothpaste, shaving cream, etc., the cap in general use is of the screw typewhich must be removed when the tube contents are to be pressed out andthen the cap replaced. This is frequently inconvenient and also resultsin the frequent loss or misplacement of the cap.

Powder containers with fixed caps have been in use for some time but apowder or fluid is easily handled in that the outlet at the cap isself-cleaning in that the fluid or powder does not adhere and leaves aclean opening when the cap is closed. In using a paste or cream,however, I have found it to be diflicult to secure a satisfactory andsanitary nozzle or outlet at the cap in that there is usually a slightportion adhering to the outer wall or outer orifice of the nozzle.

To overcome these various difiiculties I have provided a tubularself-contained cap having an outlet or nozzle adapted to be fully closedwhen the cap is locked and wherein an exposed part around the nozzleopenin or outlet is cleaned and covered when t e cap is turned so as toleave a clean surface exposed when the cap is opened again.

For a tion, reference is to behad to the accompanying drawing inwhich-'v o Fi 1 is a sideelevatio'n ofa collapsible tubuIar havin itsnozzle or outlet open;

better understanding .of inven-' container. with my. improved cap,

Fig. 2 is a view similar to Fig. 1' but with the cap closed; 7 i

Fig. 3 is a vertical section along the line 3-3 of Fig. 1;

Fig. 4 isv a transverse section through the cap along the line 4-4 ofFig. 3;

Fig. 5 is a section similar to Fig. 4 but with the cap rotated into itsclosed position;

Fig. 6 is a side and bottom View of the outer cap member;

Fig. 7 is a detail View of the containe neck with the cap removed, and

Fig. 8 shows a modified form of cap having tapered walls instead ofstraight walls as in the other form.

Referringnow more in detail to the preferred form of. my invention asdisclosed herein, it comprises capand neck members, the latter beingpreferably a cylindrical element 10 which is a continuation of theshoulder portion 11, all preferably cast as an integral memberto whichthe usual soft metal collapsible container 12 is secured in a suitablemanner. The cap member A comprises preferably an outer cylindrical wall13 and an inner cylindrical wall 14 between which is an annular recess15 for receiving the neck member 10. This neck member 10 preferably isof a sliding fit in the recess 15 so as to provide a joint sufficientlytight to. prevent escape of the contents, but permitting a free movementof the cap to open and close the, nozzle outlet 16 in the wall of theneck10.

The inner cylinder 14 of the cap has a slot 17 adapted to register withthe slot 16 of the neck so as to permit an emission of. the paste whenthe tube 1'2 is compressed.

The outer wall-13 of the cap has an opening 18 preferably large enoughto clear the outlet 16 sufficiently to permit a free flow of the pastewithout touching the outer wall when the cap is open and alsosufficiently largeto permit applying a brush or similar device to thenozzle outlet whereby the paste pressed out from the tube may be readilyremoved without interference by the outer wall. Alsotliis cap opening ispreferably largeenough to clear the ribbon of paste sufliciently torevent retaining a portion 'thereofwhent e cap. is turned to close thetube. I find that the objection to having this outer. opening retainingany of the pafsteis that it would be exposed and liable sired. When thetube is used the next time this exposed part would be-the first to beused and the hardened part the first portion on the brush. By preventingsuch exposure I eliminate this objection.

In order to securely hold the cap in place a I preferably provide anannular groove 19 now compressed thereb at the base of the neck 10, saidgroove having a stop or lug portion 20 to limit the movement of the cap,said lug being preferably an integral part of the casting.- The loweredge 21 vof the outer 'wall of the cap is then crimped into the groove19 as shown in Figs. 1, 2 and 3. As the cap A is rotated from oneposition to the other its movementis limited by the engagement betweenthe lug or stop 20 and the edges of the outer wall, the cap being cutaway at 22 to permit a sufficient rotary movement of the cap to fullyclose the nozzle outlet 16 and also cover the exposed portion around theoutlet as shown in Fig. 1.

It will also be noted that the closing edge 23 of the cap opening is cutback so that when the cap 'is rotated from its open position of Figs. 1and 4 to its closed position as shown in Figs. 2'and 5, any slightresidue of paste on the exposed part of the neck around the slot .16 isgathered up and retained beneath the under cut edge.

In operating my improved cap in connection with a collapsible tube ofthe character shown in the drawing, and such as is ordinarily used forcreams, pastes, vaseline, etc., the cap is moved from its closedposition of Fig. 2 to its open position of. Fig 1 by a slight rotationof the cap. The.

movement of the cap is limited by the engagement between the left stopedge on the cap opening and the lug 20. The tube 12 is forcing a ribbonof paste out of the nozzle outlet 16. If this is a tooth paste theribbon of paste is placed upon the brush and broken away by drawing thebrush across the opening. This usually leaves a'slight. amount of thepaste adhering around the edges of the outlet as well as in the outletitself. To leave such a portion exposed while the tube is put away forfurther use, would, of course be unsanitary. This is particularlyob'ectionable because this exposed part woul be the first part pressedout and put upon 'the brush the next time the paste was used.

Therefore, in closing up the cap after itsuse, it is rotated by a slighttwist from its open position of Figs. 1 and 4 to its closed position ofFigs. 2 and 5. The preliminary part of this closing movement causes thenozzle inner opening 17 to close'the nozrevenue leaves' a. small portionof :the'paste in the recess of theslot 16. The continued closingmovement of the cap causes the advancing edge 23 thereof to 1gather upany residue of paste left around t 1e nozzle opening on the exposedportion as shown in Fig. 1 and this residue is left beneath the undercut edge 23. At the same time this movement cleans the exposed portionaround the nozzle opening so that when the cap is again turned back toopen the nozzle the exposed portion is left clean so that when the tubeis compressed to force out some of the paste the brush may take this upwithout. gather ing any of the residue left by the previous use.

From the above it will be apparent, that I have provided anon-separable, sanitary cap member, particularly effective when usedwith pastes, creams, or anythin of a viscous nature although not limitedtiiereto. Also I contemplate using my invention in other ways than thatshown herein and understand that changes and modifications will readilyoccur to those skilled in the art. Therefore, I do not desire to belimited to the exact structure shown and described, but aim to cover allthat which comes within the spirit and scope of the appended claims.

What I claim as new and desire to secure by United States Letters Patentis:

1. A container cap of the character described comprising movablycooperating neck and cap elements havlng registrable wall outlets, oneof said elements being a cylindrical wall member and the other havinginner and outer walls closelyengaging the single wall member.

2. A container cap of the character described comprising rotatablyco-operating neck and cap elements having registrable Wall outlets, oneof said elements having concentric walls and the other an intermediatelydisposed closely engaged wall to close and open the wall outlets.

3. A container cap of the character described comprising a cylindricalneck having a wall outlet, and a movable cap having inner and outercylindrical closures engagin the inner and outer walls of the neck anhaving wall openings to expose and close the neck outlet. 1

4. A container cap of the character described comprising a cylindricalneck having a Wall outlet, and a rotatable cap having inner and outercylindrical closures'engaging the inner and outer walls of the neck andhaving wall openings to expose and close the neck outlet.

5. A container cap of the character de scribed comprising movably' neckand cap elements havmg strable wall outlets, one of said elements eing ac perating cylindrical wall member and the other having inner and outerwalls closely engaging the single wall member, and means for holding theneck and cap against separation.

6. A, container cap of the character described comprising a cylindricalneck having a wall outlet, a movable cap having inner and outercylindrical closures engaglng the inner and outer walls of the neck andhavin Wall openings to expose and close the nec outlet, and means forholding the neck and cap against separation.

7. A container cap of the character described comprising a cylindricalneck having a Wall outlet, a rotatable cap having inner and outercylindrical closures engaging the inner and outer walls of the neck andhaving wall openings to expose and close the neck outlet, and means forholding the neck and cap against separation.

8. A container cap for use with collapsible containers of viscous mattercomprising relatively movable neck and cap elements having registrablenozzle openin s, the cap opening belng sufliciently larger t an the neckopening to permit ready access to the emitted matter withoutinterference by the cap opening, and said cap being sufficiently movableto close the nozzle opening and cover the exposed portion around thenozzle opening of the neck.

9. A container cap of the character described comprising, a cylindricalneck having a wall outlet, a cap having concentric walls engaging theinner and outer surfaces of the neck and having a wall opening toregister with and also close the neck opening, the opening of the innerWall of the cap belng smaller than the outer wall opening soas to closethe neck opening preliminary to closure by the outer cap wall.

In witness whereof, I hereunto subscribe my name this 21st day ofDecember, A. D

MAX FELDSTEIN.

